Are　volunteers　the　only　environmental　protectors?　Are　there　commercfial　enterprises　that　focus　on　Environment　Protection?　In　August　of　2008,　a　book　named　"75　Green　Businesses　You　Can　Start　to　Make　Money　and　Make　a　Difference"　was　published,the　author　is　Glenn　Croston.　He　is　an　environ-mental　scientist,　author　and　entrepreneur.　In　his　book,　Glenn　corrected　common　misconceptions　about　Environmental　Protection,　and　also　addressed　75　environmental　friendly　ideas　which　could　be　of　benefit　to　entrepreneurs.